Sink or Float- What is density?

Match

Match the following essential vocabulary terms.

• density

• mass

• volume

mass divided by volume

measured in grams

measured in cubic centimeters or milliliters

• mass divided by volume

• measured in grams

• measured in cubic centimeters or milliliters

Audio Response

What determines whether or not an object will sink or float?

lo que determina si un objeto se hundirá o flotará

ALLOW QUIZIZZ TO ACCESS MIC

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Poll

Film canister

Will it sink or float?

Se hundira o flotara

• Sink

• Float

• Not sure.

Poll

Clay

Will it sink or float?

Se hundira o flotara

• Sink

• Float

• Not sure.

Poll

Aluminum Foil

Will it sink or float?

Se hundira o flotara

• Sink

• Float

• Not sure.

Poll

Rock

Will it sink or float?

Se hundira o flotara

• Sink

• Float

• Not sure.

Poll

Wooden Block

Will it sink or float?

Se hundira o flotara

• Sink

• Float

• Not sure.

​Take 5 minutes to test the items.

Then return to your desk.

Drag and Drop

Which items floated in the water?

Placeholder

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Placeholder

Drag these tiles and drop them in the correct blank above

wooden block

film canister

aluminum foil

clay

rock

​To save time we will all use the same measurements for our items even though they were varying sizes.

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Lab Measurements

Item	​Mass (grams)	​Volume (cm
Film Canister	​5.6 g	​50 cm
Clay	​4.0 g	​3 cm
Aluminum Foil	​6.3 g	​7 cm
Rock	​80.6 g	​33 cm
Wooden Block	20.9 g​	​47.5 cm

Open Ended

What is the density of the film canister?

Open Ended

What is the density of the clay?

Open Ended

What is the density of the aluminum foil?

Open Ended

What is the density of the rock?

Open Ended

What is the density of the wooden block?

Reorder

Reorder the densities of the object from highest to lowest.

• Rock

  2.44 g/cm³

• Clay

  1.3 g/cm³

• Aluminum Foil

  0.9 g/cm³

• Wooden Block

  0.44 g/cm³

• Film Canister

  0.112 g/cm³

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Open Ended

Reflect on the data.

What does density have to do with sinking or floating?

Audio Response

Compare the density of water with the densities of the objects that sink and the objects that float.

What can you conclude about the objects that sink, in relationship to the density of water?

Compara la densidad del agua con las densidades de los objetos que se hunden y los objetos que flotan. ¿Qué puedes concluir sobre los objetos que se hunden, en relación con la densidad del agua?

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